EP0684375A1 - Dispositif pour la régulation d'un moteur à combustion interne - Google Patents

Dispositif pour la régulation d'un moteur à combustion interne Download PDF

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Publication number
EP0684375A1
EP0684375A1 EP95107650A EP95107650A EP0684375A1 EP 0684375 A1 EP0684375 A1 EP 0684375A1 EP 95107650 A EP95107650 A EP 95107650A EP 95107650 A EP95107650 A EP 95107650A EP 0684375 A1 EP0684375 A1 EP 0684375A1
Authority
EP
European Patent Office
Prior art keywords
phase
internal combustion
combustion engine
crankshaft
phase position
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95107650A
Other languages
German (de)
English (en)
Other versions
EP0684375B1 (fr
Inventor
Karl Ing. Ott
Klaus Dipl. Ing. Walter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0684375A1 publication Critical patent/EP0684375A1/fr
Application granted granted Critical
Publication of EP0684375B1 publication Critical patent/EP0684375B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
    • F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
    • F02D2041/0092—Synchronisation of the cylinders at engine start
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/042—Introducing corrections for particular operating conditions for stopping the engine

Definitions

  • the invention relates to a device for controlling an internal combustion engine according to the preamble of the main claim.
  • the control unit calculates, depending on the detected position of the crankshaft, at what point in time in which cylinder fuel is to be injected and at what point in time in which cylinder the ignition must be triggered. It is customary to determine the angular position of the crankshaft with the aid of a sensor which scans the crankshaft or a disk connected to it with a characteristic surface.
  • the device according to the invention for regulating an internal combustion engine has the advantage that no phase sensor, that is to say no sensor that scans a disk rotating with the camshaft, is required, but only a sensor that determines the position of the crankshaft.
  • This advantage is achieved by deliberately changing the beginning of the injection in relation to the angular position of the crankshaft for the individual cylinders, also known as the advance angle, so that a speed change is initiated from one work cycle to the next in the wrong phase position, which change is carried out using the evaluation of the Signals from the crankshaft sensor is detected. This change in speed is evaluated in the control unit and used for phase detection and then for phase synchronization.
  • phase detection is used together with a device in which the position of the crankshaft and thus also the position of the camshaft and the phase position after the end of the internal combustion engine are registered and stored and these findings are first taken into account when the internal combustion engine is switched on again and a phase detection takes place immediately after the start, by means of which it is recognized whether the assumed phase position was correct.
  • phase position is carried out in a system with run-out detection by influencing the advance angle during injection, in the case in which the stored phase position is correct, an optimal ignition and injection is guaranteed immediately after switching on the internal combustion engine.
  • injections and ignitions can take place at undesired times, but synchronization and then an optimal control or regulation of the ignition and injection of the internal combustion engine are quickly obtained without the need for a phase sensor.
  • FIG. 1 the components of the control system of an internal combustion engine that are essential for understanding the invention are shown schematically and in FIG. 2 it is shown at what angles, based on the crankshaft position, the injections or ignitions have to be carried out so that phase detection can be carried out.
  • FIG. 1 the components of the control system of an internal combustion engine required to explain the invention are shown schematically.
  • 10 denotes an encoder disk, which is rigidly connected to the crankshaft 11 of the internal combustion engine and has a multiplicity of similar angle marks 12 on its circumference.
  • a reference mark 13 which is implemented, for example, by two missing angle marks.
  • the sensor disk 10 is scanned by the sensor 14, for example an inductive sensor or a Hall sensor, the signals generated in the sensor when the angle marks pass in the sensor 15 are processed in a suitable manner.
  • phase sensor present in conventional internal combustion engines which connects the camshaft 16 or one connected to the camshaft 16 Scanning the disc with a marking is not provided here.
  • the information regarding the phase position which is usually obtained from the output signal of such a sensor, is obtained here with the help of the change in the advance angle of the injection, which is yet to be explained.
  • the control unit 15 receives, via various inputs, further input quantities required for the control or regulation of the internal combustion engine, which are measured by various sensors. These sensors are designated 17 in FIG.
  • a "ignition ON" signal is supplied via a further input, which is supplied by the terminal KI.15 of the ignition lock when the ignition switch 18 is closed.
  • the control unit 15 comprises at least one central processor unit 18 and memory 19. Signals for the ignition and injection for corresponding components of the internal combustion engine, not specified, are determined in the control unit. These signals are emitted via the outputs 20 and 21 of the control device 15.
  • the voltage supply to the control unit 15 takes place in the usual way with the aid of a battery 22, which is connected to the control unit 15 via a switch 23 during operation of the internal combustion engine and during a run-on phase controlled by the control unit itself after the engine has been switched off.
  • the follow-up phase can also be done by other means, e.g. by means of memory available in the control unit.
  • the position of the crankshaft 11 can be detected at any time during operation of the internal combustion engine. Since the assignment between crankshaft and camshaft is known as well as the assignment between the position of the camshaft and the position of the individual cylinders, synchronization can take place after the reference mark has been recognized, but only if a signal that is characteristic of the phase position is present.
  • a vertical line is entered after an angle of 720 degrees KW, i.e. after a work cycle.
  • Angular ranges essential for understanding are given in relation to such vertical lines, namely from the beginning of the injection pulse to a vertical line.
  • the distance between the beginning of the injection pulses and the subsequent vertical line and thus the load change top dead center is referred to below as the advance angle a.
  • the phase position is recognized after starting or during operation, for example in idle mode, by the control device making specific changes in the forward angle a.
  • the injection is shifted into the previous work cycle if the phase position is incorrect, as a result of which a speed change is initiated.
  • This speed change is evaluated and used for phase synchronization.
  • the speed signal is obtained from the signal of the crankshaft sensor, which delivers a speed-dependent pulse sequence, which is used in the control unit 15 in a conventional manner for determining the speed.
  • the advance angle has e.g. a setpoint of 180 degrees KW before load change TDC.
  • the target advance angle is increased by 360 degrees KW to 540 degrees KW before LWOT.
  • the setpoint of the reference angle is again reduced by 360 degrees KW, that is to 180 degrees KW. If the phase synchronization is correct, the target pre-storage corresponds to the actual storage and each work cycle is operated with a single injection. There will therefore be no significant change in speed or be recognized. The situation with the correct phase position is shown in a).
  • the actual advance angle is 360 degrees KW compared to the target advance win kel shifted, so it is in the first work cycle the actual advance angle by 540 degrees KW before the first load change top dead center.
  • the actual advance angle is 900 degrees KW before the second load change TDC. This is equivalent to 180 KW before the first load change TDC.
  • the actual advance angle is 540 degrees KW before the third load change TDC.
  • phase position is incorrectly assumed, two injections take place in the first work cycle and no injection at all in the second work cycle. This leads to deteriorated combustion or even to misfires and therefore causes a speed change.
  • the detection of this change in speed is carried out in the control unit 15 by means of a suitable method. If such a change in speed is reliably detected, it can be determined that the phase position is wrong and the control unit can trigger a phase re-synchronization and, based on this re-synchronization, trigger the further injection and ignition pulses at the correct point.
  • This procedure enables the control unit to recognize after a few injections whether the assumed phase position is correct or incorrect and to make a correction in the event of an incorrect phase position.
  • a phase sensor as is required in conventional systems, can therefore be dispensed with.
  • phase detection described can be used in known injection and ignition systems such as SEFI (sequential fuel injection), in knock control, rotating high-voltage distribution, static high-voltage distribution, two-spark coils and the like. Systems are used.
  • phase detection is used by changing the advance angle a from one working cycle to the next in a device for regulating an internal combustion engine, in which after the ignition is switched off, after-running takes place, during which the evaluation device evaluates the crankshaft sensor signal until the shaft comes to a standstill and the position of the crankshaft
  • a stored phase position that was assumed to be correct when restarted can be checked and corrected if necessary.
  • the detection of whether the phase position is correct or incorrect is carried out by the control unit 15 via the detection of speed changes, as already explained above.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
EP95107650A 1994-05-27 1995-05-19 Dispositif pour la régulation d'un moteur à combustion interne Expired - Lifetime EP0684375B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4418577A DE4418577A1 (de) 1994-05-27 1994-05-27 Einrichtung zur Regelung einer Brennkraftmaschine
DE4418577 1994-05-27

Publications (2)

Publication Number Publication Date
EP0684375A1 true EP0684375A1 (fr) 1995-11-29
EP0684375B1 EP0684375B1 (fr) 1999-08-25

Family

ID=6519145

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95107650A Expired - Lifetime EP0684375B1 (fr) 1994-05-27 1995-05-19 Dispositif pour la régulation d'un moteur à combustion interne

Country Status (2)

Country Link
EP (1) EP0684375B1 (fr)
DE (2) DE4418577A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5758625A (en) * 1996-12-03 1998-06-02 C.R.F. S.C.P.A. Method of synchronizing an internal-combustion engine without a cam position sensor
EP0942163A3 (fr) * 1998-03-10 2000-09-27 Robert Bosch Gmbh Procédé pour la synchronisation d'un moteur à combustion interne à plusieurs cylindres
WO2000065219A1 (fr) * 1999-04-24 2000-11-02 Bayerische Motoren Werke Aktiengesellschaft Procede de synchronisation d'allumage
WO2001079679A1 (fr) * 2000-04-14 2001-10-25 Scania Cv Ab Procede et dispositif utilises dans un moteur a combustion interne a quatre temps a multiples cylindres
WO2005010337A1 (fr) * 2003-07-08 2005-02-03 General Electric Company Elimination du capteur de position d'arbre a cames dans des moteurs a combustion par compression
EP1533508A1 (fr) * 2003-11-19 2005-05-25 Ford Global Technologies, LLC, A subsidary of Ford Motor Company Procédé pour la détection du temps d'un cylindre d'un moteur à combustion interne
WO2006012026A1 (fr) * 2004-06-30 2006-02-02 General Electric Company Fonctionnement d'un moteur sans capteur de position de l'arbre a came
WO2007010129A1 (fr) * 2005-07-22 2007-01-25 Valeo Systemes De Controle Moteur Determination du calage de l' injection dans un moteur thermique a cycle a quatre temps
WO2007087165A1 (fr) * 2006-01-20 2007-08-02 Caterpillar Inc. Système et procédé de résolution de conducteurs électriques croisés
US7392790B2 (en) 2006-01-20 2008-07-01 Caterpillar Inc. System and method for resolving crossed electrical leads

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19820817C2 (de) * 1998-05-09 2001-09-13 Bosch Gmbh Robert Einrichtung zur Regelung einer mehrzylindrigen Brennkraftmaschine
DE10015595A1 (de) * 2000-03-29 2001-10-04 Bayerische Motoren Werke Ag Verfahren zur Erkennung des Verbrennungstaktes bei einem Einzylinder-Viertaktmotor
US6499341B1 (en) * 2000-07-20 2002-12-31 Harley-Davidson Motor Company Group, Inc. Motorcycle having system for determining engine phase
DE10043756C2 (de) 2000-09-05 2002-11-28 Siemens Ag Verfahren zur Festlegung des Einspritzzeitpunkts bei einer Einspritzanlage für eine Brennkraftmaschine
DE10122247B4 (de) * 2001-05-08 2004-06-24 Robert Bosch Gmbh Verfahren zur Phasenerkennung bei einer Brennkraftmaschine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6062665A (ja) * 1983-09-16 1985-04-10 Hitachi Ltd エンジン制御装置
DE4143094A1 (de) * 1990-12-27 1992-07-30 Volvo Ab Anordnung fuer eine elektronische steuerung von brennstoffinjektoren fuer einen verbrennungsmotor
EP0576334A1 (fr) * 1992-06-23 1993-12-29 Regie Nationale Des Usines Renault S.A. Procédé de repérage cylindres pour le pilotage d'un système d'injection électronique d'un moteur à combustion interne
DE4230616A1 (de) * 1992-09-12 1994-03-17 Bosch Gmbh Robert Einrichtung zur Erkennung der Stellung wenigstens einer, eine Referenzmarke aufweisenden Welle

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4616617A (en) * 1984-04-07 1986-10-14 Volkswagenwerk Aktiengesellschaft Method and arrangement for combustion chamber identification in an internal combustion engine
US4843556A (en) * 1985-07-23 1989-06-27 Lucas Industries Public Limited Company Method and apparatus for controlling an internal combustion engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6062665A (ja) * 1983-09-16 1985-04-10 Hitachi Ltd エンジン制御装置
DE4143094A1 (de) * 1990-12-27 1992-07-30 Volvo Ab Anordnung fuer eine elektronische steuerung von brennstoffinjektoren fuer einen verbrennungsmotor
EP0576334A1 (fr) * 1992-06-23 1993-12-29 Regie Nationale Des Usines Renault S.A. Procédé de repérage cylindres pour le pilotage d'un système d'injection électronique d'un moteur à combustion interne
DE4230616A1 (de) * 1992-09-12 1994-03-17 Bosch Gmbh Robert Einrichtung zur Erkennung der Stellung wenigstens einer, eine Referenzmarke aufweisenden Welle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 9, no. 198 (M - 404) 15 August 1985 (1985-08-15) *

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5758625A (en) * 1996-12-03 1998-06-02 C.R.F. S.C.P.A. Method of synchronizing an internal-combustion engine without a cam position sensor
EP0846852A1 (fr) * 1996-12-03 1998-06-10 C.R.F. Società Consortile per Azioni Méthode de synchronisation d'un moteur à combustion sans détecteur de position d'arbre à came
EP0942163A3 (fr) * 1998-03-10 2000-09-27 Robert Bosch Gmbh Procédé pour la synchronisation d'un moteur à combustion interne à plusieurs cylindres
WO2000065219A1 (fr) * 1999-04-24 2000-11-02 Bayerische Motoren Werke Aktiengesellschaft Procede de synchronisation d'allumage
US6536410B1 (en) 1999-04-24 2003-03-25 Bayerische Motoren Werke Aktiengesellschaft Method for synchronizing ignition
WO2001079679A1 (fr) * 2000-04-14 2001-10-25 Scania Cv Ab Procede et dispositif utilises dans un moteur a combustion interne a quatre temps a multiples cylindres
US6595193B2 (en) 2000-04-14 2003-07-22 Scania Cv Ab Method and arrangement at a multiple cylinder four-stroke cycle internal combustion engine
WO2005010337A1 (fr) * 2003-07-08 2005-02-03 General Electric Company Elimination du capteur de position d'arbre a cames dans des moteurs a combustion par compression
EP1533508A1 (fr) * 2003-11-19 2005-05-25 Ford Global Technologies, LLC, A subsidary of Ford Motor Company Procédé pour la détection du temps d'un cylindre d'un moteur à combustion interne
WO2006012026A1 (fr) * 2004-06-30 2006-02-02 General Electric Company Fonctionnement d'un moteur sans capteur de position de l'arbre a came
WO2007010129A1 (fr) * 2005-07-22 2007-01-25 Valeo Systemes De Controle Moteur Determination du calage de l' injection dans un moteur thermique a cycle a quatre temps
FR2888885A1 (fr) * 2005-07-22 2007-01-26 Valeo Sys Controle Moteur Sas Procede de determination du calage de l'injection dans un moteur thermique a cycle a quatre temps, et dispositif de mise en oeuvre
US7783412B2 (en) 2005-07-22 2010-08-24 Valeo Systemes De Controle Moteur Method of determining the injection timing in a four-stroke heat engine and device for implementing this method
WO2007087165A1 (fr) * 2006-01-20 2007-08-02 Caterpillar Inc. Système et procédé de résolution de conducteurs électriques croisés
US7370635B2 (en) 2006-01-20 2008-05-13 Caterpillar Inc. System and method for resolving electrical leads
US7392790B2 (en) 2006-01-20 2008-07-01 Caterpillar Inc. System and method for resolving crossed electrical leads
GB2446349A (en) * 2006-01-20 2008-08-06 Caterpillar Inc System and method for resolving crossed electrical leads
JP2009523956A (ja) * 2006-01-20 2009-06-25 キャタピラー インコーポレイテッド 交差した電気リードを分析するためのシステムおよび方法
GB2446349B (en) * 2006-01-20 2011-04-27 Caterpillar Inc System and method for resolving crossed electrical leads
CN101371024B (zh) * 2006-01-20 2011-11-02 卡特彼勒公司 用于解决交错电导线问题的系统和方法

Also Published As

Publication number Publication date
DE4418577A1 (de) 1995-11-30
DE59506665D1 (de) 1999-09-30
EP0684375B1 (fr) 1999-08-25

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